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Wavelength Effect on Photocatalytic Reduction of CO(2) by Ag/TiO(2) Catalyst
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SYSNO ASEP 0363297 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Wavelength Effect on Photocatalytic Reduction of CO(2) by Ag/TiO(2) Catalyst Tvůrce(i) Kočí, K. (CZ)
Zatloukalová, K. (CZ)
Obalová, L. (CZ)
Krejčíková, Simona (UCHP-M) RID, ORCID, SAI
Lacný, Z. (CZ)
Čapek, L. (CZ)
Hospodková, Alice (FZU-D) RID, ORCID, SAI
Šolcová, Olga (UCHP-M) RID, ORCID, SAIZdroj.dok. Chinese Journal of Catalysis - ISSN 0253-9837
Roč. 32, 5/SI/ (2011), s. 812-815Poč.str. 4 s. Akce 6th International Conference on Environmental Catalysis (6th ICEC) Datum konání 12.09.2010-15.09.2010 Místo konání Beijing Země CN - Čína Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CN - Čína Klíč. slova silver doping ; titania ; carbon dioxide reduction ; photocatalysis ; wavelength Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství CEP GA104/09/0694 GA ČR - Grantová agentura ČR CEZ AV0Z40720504 - UCHP-M (2005-2011) AV0Z10100521 - FZU-D (2005-2011) UT WOS 000291508200017 DOI 10.1016/S1872-2067(10)60199-4 Anotace Photocatalytic reduction of CO(2) by water was performed in the presence of a Ag/TiO(2) catalyst under illumination by lamps with different wavelengths (254, 365, and 400 nm). The yields of the main products (methane and methanol) were higher with the 254 nm lamp than with the 365 lamp while no products were observed with the 400 nm lamp. This was because the electron-hole generation rate increased with increasing energy of irradiation (decreasing wavelength) and there were higher densities of electron states at higher energies in TiO(2). The increased efficiency of electron-hole generation with a shorter wavelength irradiation increased the efficiency of the catalyst. The energy of the electrons excited by visible light (400 nm) was too low for CO(2) photocatalytic reduction. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2012
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